In the context of global green energy transformation, environmentally friendly insulating oil has become the development trend of the transformer industry. Recently, the CTR natural ester insulating oil developed by Great Wall Lubricants has successfully passed the UL ECOLOGO certification, which opens up a green new channel for China's bio based insulating oil to enter the European and American markets.

UL ECOLOGO certification is one of the globally recognized authoritative environmental certifications, which has extremely strict requirements for the environmental performance of products. Great Wall Lubricant CTR Natural Ester Insulation Oil performed excellently in this certification, with a biodegradation rate of over 95% (tested according to OECD 301B standard) and a carbon footprint reduced by 60% compared to traditional mineral oils, fully meeting the various indicators of UL ECOLOGO certification. This not only reflects the excellent environmental performance of the product, but also proves that China has reached the international advanced level in the research and development of bio based insulating oil.

In addition to its excellent environmental performance, CTR natural ester insulating oil is also comparable in technical indicators. In terms of key performance such as dielectric strength and oxidation stability, they have reached or even exceeded international standards. After testing, its dielectric strength is greater than 65kV (ASTM D877 test), and its oxidation stability induction period is ≥ 180h, which can provide reliable insulation protection for transformers and ensure the long-term stable operation of equipment.

With excellent performance, CTR natural ester insulating oil has successfully entered the supply chain system of internationally renowned enterprises. Global leading electrical equipment manufacturers such as Siemens and ABB have recognized the product after rigorous testing and included it in their procurement list. This has laid a solid foundation for the promotion of CTR natural ester insulating oil in the European and American markets.

In practical applications, CTR natural ester insulating oil has also demonstrated good adaptability. In a photovoltaic power plant project in Spain, the transformer using this insulating oil has been operating stably for over a year. According to feedback from power station operation and maintenance personnel, the use of CTR natural ester insulation oil significantly reduces the operating temperature of transformers, and the expected equipment life can be extended by 30%, while maintenance costs are reduced by 25%. This practical case fully validates the application value of the product in the field of new energy.

The demand for environmentally friendly products in the European and American markets is increasing, especially in the power industry, where countries are actively promoting the construction of green power grids. According to QYResearch's forecast data, the compound annual growth rate of the global bio based transformer oil market is expected to reach 8.2% from 2025 to 2031, with the European and American markets accounting for over 60%. Great Wall Lubricant CTR Natural Ester Insulation Oil has obtained UL certification, undoubtedly providing strong support for its expansion in the European and American markets.

In the future, Great Wall Lubricants will continue to increase investment in the research and development of bio based insulating oils, continuously improve product performance, and expand application areas. At the same time, actively responding to the global trend of green energy development, providing more high-quality and environmentally friendly insulation oil products for the European and American markets, and helping the green transformation of the global power grid.